fcons.c File Reference

#include "schilyio.h"

Include dependency graph for fcons.c:

Go to the source code of this file.

Functions
EXPORT FILE *	_fcons (FILE *fd, int f, int flag)

Variables
LOCAL char *	fmtab []

Function Documentation

_fcons()

EXPORT FILE * _fcons	(	FILE *	fd,
		int	f,
		int	flag
	)

Definition at line 53 of file fcons.c.

{
    int my_gflag = _io_glflag;
 
    if (fd == (FILE *)NULL)
        fd = fdopen(f,
            fmtab[flag&(FI_READ|FI_WRITE|FI_BINARY | FI_APPEND)]);
 
    if (fd != (FILE *)NULL) {
        if (flag & FI_APPEND) {
            (void) fseek(fd, (off_t)0, SEEK_END);
        }
        if (flag & FI_UNBUF) {
            setbuf(fd, NULL);
            my_gflag |= _JS_IOUNBUF;
        }
        set_my_flag(fd, my_gflag); /* must clear it if fd is reused */
        return (fd);
    }
    if (flag & FI_CLOSE)
        close(f);
 
    return ((FILE *)NULL);
}

Referenced by fileopen().

Variable Documentation

fmtab

LOCAL char* fmtab[]

Initial value:

= {
            "", 
            "r",    
            "w",    
            "r+",   
            "b",    
            "rb",   
            "wb",   
            "r+b",  
 
    "", 
    "r",    
            "a",    
            "a+",   
            "b",    
            "rb",   
            "ab",   
            "a+b",  
        }

Definition at line 24 of file fcons.c.

Referenced by _fcons().